User blog comment:Gelsadra/New theory or nobody ever think of it?/@comment-26082987-20150207000145/@comment-6769189-20150207105340

1) Deadly Fortune is non-canon on account of it trying to rewrite DMC4

2) People ASSUMED Nero's mom was a hooker. Never confirmed In the novel.

3) Vergil doesn't like humans, why leave Nero in the human world?

4) Nero is too old to be Vergils son regardless.